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Web DevelopmentIntroduction to MODERN WEB APPLICATIONS
History 2
1991 First web page created by Tim Berners accessed by web browser.
1990s Java Applets, Flash, JavaScript, Web Hosting, Dynamic Web Sites.
2000s Ajax, Cloud Computing (PaaS, SaaS), Web Apps, Google, Web 2.0
2010s HTML5 Era, Modern Browsers, High-end mobile devices, Big Data,
NoSql, Microservices…
Product segmentation 3
!
Smart phone Native Apps, Mobile
Browser, HTML5 Client
"
Tablet Office Apps, Mobile
Browser, Streaming Apps
Q
PC Web Browsers, Desktop Apps, Cloud Storage Client
#
Cloud Storage Dropbox, OneDrive,
GoogleDrive
Location services Maps, Navigation,
Point of Interest
%
Web APIs Web Search, Social Networking, Open authentication.
&
Frontend vs. Backend
Pillars of Front-end Web Apps 4
WEB BROWSER AS UNIVERSAL CLIENT
HHH
MVVM Framework -
Fireproof JavaScript
Pillars of Front-end Web Apps 5
Traditional Web Page
Browser
&
Server
'( html
First page load
( html
Form post)Page Reload
Pillars of Front-end Web Apps 6
Single Page Application(SPA)
Browser
&
Server
'( html
First page load
{} JSON
Async Request*
Javascript Handler
Pillars of Front-end Web Apps 7
• Content Delivery Network(CDN)
• Javascript REST Client • Responsive Web Page
• Async Network Operations • Offline User Interactions
• Responsive Web Design (RWD)
Front-end Web Frameworks 9
Notification System
'
Third-party API
'
Web API as a product 10
• Multiple client plaftorms
Backend
'
End-user App
+
Test Agent
,
• Easy to integrate with new applications and protocols • Fast development of new products• Branding, partnership and innovation • Monetize: Pay as you go, subscriptions…
Web APIs examples 11
-
.
www.facebook.com
www.twitter.com
www.dropbox.com
Good practices for Web API Design 12
• Documentation • API Test • Security
• Public / private domain • CORS(Cross-Origin Resource Sharing)
• Flexibility • Protocolos and Formats
• Stability • Versioning • Backward compatibility
• Simplicity and adoption
13
Reference: [1] http://www.dzone.com/research/guide-to-enterprise-integration
2014 Background
28%48%
DZone’s 2014 Enterprise Integration Survey 2014
• The majority of respondents are headquartered in Europe (48%) or the US (28%).
• More than 500 it professionals responded to DZone’s 2014 Enterprise Integration Survey.
2014 Background 14
Reference: [1] http://www.dzone.com/research/guide-to-enterprise-integration
• Developers (45%) and development team leads (30%) were the most common roles.
• 69% of respondents come from large organizations (100 or more employees) and 31% come from small organizations (under 100 employees).
• over half of the respondents (70%) have over 10 years of experience as it professionals.
• A large majority of respondents’ organizations use Java (94%). JavaScript is the next highest (47%).
2014 Background 15
BI/Analytics
55%
CRM
51%
DOCUMENT MANAGEMENT
50%
ERP
47%
MOST COMMON SYSTEM INTEGRATIONS
Reference: [1] http://www.dzone.com/research/guide-to-enterprise-integration
2014 Background 16
73%
55%
{
"name”: “John”,
“email" : “[email protected]"
}
JSON
Value 3
45%XML
<customer>
<name>John</name>
<email>[email protected]</email>
</customer>
Reference: [1] http://www.dzone.com/research/guide-to-enterprise-integration
WHICH PROTOCOL ARE YOU MORE COMFORTABLE WITH?
2014 Background 17
38%OAuth
25%Haven’t used
either
37% WS-SecurityWS-Security vs. OAuth
WHICH PROTOCOL ARE YOU MORE COMFORTABLE WITH?
2014 Background 18
82%No
18% Yes
HAVE YOU USED HATEOAS IN YOUR APIs?
Comments 19
/
Full Stack Developer RESTFul Web Services
HATEOAS
Web Page Performance What backend
frameworks are you using?
CORS
Contact
FABRICIO EPAMINONDAS 0 linkedin.com/in/fabricioepa
1 fabricioepa.wordpress.com
. @fabricioepa
